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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script src="axios.js"></script>
    <script>
        axios.interceptors.request.use(function (config) {
            console.log(config.url);
            config.headers.mytoken = 'nihao';
            return config;
        }, function (err) {
            console.log(err);
        });

        axios.interceptors.response.use(function (res) {
            console.log(res);
            return res.data;
        }, function (err) {
            console.log(err);
        });

        axios.get('http://localhost:3000/adata').then(ret => {
            console.log(ret);
        })
    </script>
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